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Fibrous material-containing composite

  • US 5,132,155 A
  • Filed: 05/17/1991
  • Issued: 07/21/1992
  • Est. Priority Date: 12/14/1987
  • Status: Expired due to Term
First Claim
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1. A composite comprised of a ceramic matrix and at least a layer of filaments embedded in said matrix, said layer of filaments comprising at least about 10% by volume of said composite, each said filament having a diameter of at least about 50 microns and a length at least ten times its diameter, more than 99% by volume of said filaments being spaced from each other and being at least substantially parallel to each other, said matrix having a thermal expansion coefficient which ranges from lower than that of said filaments to less than about 15% higher than that of said filaments, said matrix being continuous and interconnecting, said composite having a porosity of less than about 5% by volume.

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